linux-kernel - Re: [PATCH 06/18] thermal: exynos: fix trips limit checking in get_th

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Message-id: <2166794.yRDuDm3vze@amdc3058>
Date:   Wed, 02 May 2018 11:19:06 +0200
From:   Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:     Daniel Lezcano <daniel.lezcano@...aro.org>
Cc:     Eduardo Valentin <edubezval@...il.com>,
        Zhang Rui <rui.zhang@...el.com>,
        linux-samsung-soc@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 06/18] thermal: exynos: fix trips limit checking in
 get_th_reg()

On Tuesday, May 01, 2018 11:39:14 AM Daniel Lezcano wrote:
> On Mon, Apr 30, 2018 at 05:48:29PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > On Monday, April 30, 2018 05:34:31 PM Daniel Lezcano wrote:
> > > On Thu, Apr 26, 2018 at 01:51:21PM +0200, Bartlomiej Zolnierkiewicz wrote:
> > > > of_thermal_get_ntrips() may return value bigger than supported
> > > > by a given SoC (i.e. on Exynos5422/5800) 
> > > 
> > > Can you elaborate a bit ?
> > 
> > Odroid-XU3 DTS file [1] define 6 thermal trip points (2 passive ones)
> > while data->ntrip is 4, the current code works fine by accident as
> > the threshold values for trip points 5 & 6 don't fit into 32-bits
> > threshold value (however since they are passive ones this is okay).
> 
> Ah, I see. data->ntrip is the SoC specific tmu max value capping what is
> defined in the DT, right ?

It is SoC specific max value for active + critical trips points.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics